I have this string
'[334.0, 223.0, 41.0, 819.0]'
And I need to transform this in this array:
[334.0, 223.0, 41.0, 819.0]
Any ideas? Thanks
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3 Answers
Use the ast module.
Ex:
import ast
print(ast.literal_eval('[334.0, 223.0, 41.0, 819.0]'))
output:
[334.0, 223.0, 41.0, 819.0]
5 Comments
Miguel Santos
Really nice dude, can you explain to me how it works?
Miguel Santos
much love to you man
Rakesh
You are welcome :)
Miguel Santos
I cant, I have to wait 15mins (1 left) but I will
Simple one-liner with no extra imports:
a = '[334.0, 223.0, 41.0, 819.0]'
b = [ float(i) for i in a[1:-1].split(',') ]
print b
Output:
[334.0, 223.0, 41.0, 819.0]
1 Comment
amitchone
float(223) will produce the output 223.0. (It seems that the commenter deleted the comment. This was in response to: What if we have an integer value in a).What about eval?
That would evaluate a string as if it is a python code.
For example:
string='[334.0, 223.0, 41.0, 819.0]'
a = eval(string)
print(a[0])
output:
334.0
3 Comments
awesoon
Riccardo Petraglia
@soon Only if you do not know what you are doing. ;)
awesoon
Let's be honest - most of developers do not know what are they doing.
ast.literal_eval behaves like eval for objects and it is safe